Drug injector adapter

Abstract

Provided is a drug injector adapter configured to be attachable to and detachable from a needleless drug injector, the drug injector adapter which comprises a fixing portion that is inserted and fixed in a position where a nozzle of the drug injector was removed, a coupling portion having a structure for coupling a needle to an opposite side of the fixing portion and a delivery flow passage configured to deliver drugs delivered from the drug injector to the needle in a state in which the drug injector, the needle, and the drug injector adapter are coupled to each other.

1 . A drug injector adapter configured to be attachable to and detachable from a needleless drug injector, the drug injector adapter comprising:
 a fixing portion that is inserted and fixed in a position where a nozzle of the drug injector was removed;   a coupling portion having a structure for coupling a needle to an opposite side of the fixing portion; and   a delivery flow passage configured to deliver drugs delivered from the drug injector to the needle in a state in which the drug injector, the needle, and the drug injector adapter are coupled to each other.   
     
     
         2 . The drug injector adapter of  claim 1 , wherein one side of the delivery flow passage is connected to a flow passage of the drug injector according to the coupling with the drug injector. 
     
     
         3 . The drug injector adapter of  claim 2 , wherein the other side of the delivery flow passage is connected to a flow passage of the needle according to the coupling with the needle. 
     
     
         4 . The drug injector adapter of  claim 3 , further comprising:
 a first sealing portion configured to allow the fixing portion to come into close contact with the drug injector.   
     
     
         5 . The drug injector adapter of  claim 4 , wherein the first sealing portion is in close contact with the delivery flow passage of the drug injector adapter and the flow passage of the drug injector to connect them in a tightly sealed state when the drug injector adapter is coupled to the drug injector. 
     
     
         6 . The drug injector adapter of  claim 5 , wherein the first sealing portion is formed of an elastic material. 
     
     
         7 . The drug injector adapter of  claim 6 , further comprising:
 a support portion configured to be in close contact with an outer surface of the drug injector in a state where the fixing portion is inserted into the position where the nozzle of the drug injector was removed.   
     
     
         8 . The drug injector adapter of  claim 7 , further comprising:
 an adapter housing configured to surround the coupling portion and constitute a coupling groove into which the needle is inserted and coupled.   
     
     
         9 . The drug injector adapter of  claim 8 , wherein the adapter housing comprises:
 a second sealing portion that is in close contact with the delivery flow passage of the drug injector adapter and the flow passage of the needle to connect them in a tightly sealed state when the drug injector adapter is coupled to the needle.   
     
     
         10 . The drug injector adapter of  claim 1 , wherein the coupling portion is formed in a protruding structure corresponding to an insertion groove of the needle and is configured to be coupled to the needle.